Officials at Citrus Valley High School in Redlands contacted police on Monday, acting on a tip from the boy's mother. The sexual relationship began last summer and continued for nearly a year, police said. The boy is now 17.

Whitehurst gave birth to the child June 18. A telephone message left at the Whitehurst home was not immediately returned.

In a statement, Redlands Unified School District Assistant Superintendent Sabine Robertson-Phillips said they were "recently made aware of allegations involving a high school student and teacher." Police were immediately notified and Whitehurst was placed on leave, Robertson-Phillips said.

PHOTOS: Local educators and coaches charged with child sex crimes

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Several educators and coaches on the Central Coast were charged with child sex abuse crimes in the past two years.